Physics [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 31  36 of 285
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Question number: 31
Question
MCQ▾The earth attracts a body of mass on its surface with a force:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 32
Question
MCQ▾A child kicks a ball along x – direction such that ball starts moving with velocity of . If the velocity of the ball decreases at the rate of , the time taken by the ball to be stationary is –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 33
Question
MCQ▾An particle moves along a circular path of radius with a constant speed. If it take to move from a point on the path to the diametrically opposite point, then the distance covered , speed , displacement respectively are:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 34
Question
MCQ▾A car has a value of . It may be the –
Choices
Choice (4)  Response  

a.  Acceleration of the car  
b.  Speed of the car  
c.  Momentum of the car  
d.  Force on the car 
Question number: 35
Question
MCQ▾A car increase its speed from to with constant acceleration . So, time taken to change speed is –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 36
Question
MCQ▾If a boy put a book on his head and he is climbing up a ladder, then work done by the boy on the book is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
